H2X29 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 29 mm (1.142 in), a cross section of 2 mm (0.079 in), and an outside diameter of 33 mm (1.3 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.
Expect good resistance to petroleum-based oils, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
Maintenance and OEM teams specify it across hydraulic and pneumatic systems, fluid power, and general industrial maintenance.
Order part number H2X29, sold individually. Unit weight is approximately 0.379 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 2MM CS X 29MM ID BLACK BUNA 70D
Actual Outside Diameter 33 mm (1.3 inch)
Actual Cross Section 2 mm (0.079 inch)
Actual Inside Diameter 29 mm (1.142 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity